A huge number of children and adults around the world have bite problems, and these problems are not only aesthetic in nature, they can cause serious diseases. In this book, Sandra Kahn, a dentist, and Paul R. Ehrlich, a renowned biologist, explore the causes and consequences of jaw maldevelopment in modern humans, and present a new perspective on orthodontics and dentistry. According to them, sleep apnea, difficulty breathing, heart disease, depression and other dangerous conditions can occur due to insufficient development of the jaw. The authors suggest paying attention to how you breathe, chew, and sleep in order to develop healthier habits and make your life better.Publisher's layout of the book is preserved in PDF A4 format.